Winch.



M. B. WILD.

WINCH.

APPUCATION FILED JULY 26. 1917.

11,281,732. Patented 001. 15, 1918.

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WINCH.

APPLICATION FILED JULY26. I911.

15281 732. Patented Oct. 15, 1918.

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ATTORNEY' ,M. B. WILD.

WINCH.

APPLICATION FILED JULY 26. 1917.

Patented Oct. 15, 1918.

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WINCH.

' Specification of Letters Patent.

Patented Oct. f5, 1918.

Application filed July 26, 1917. Serial No. 182,884.

To all whom it may concern:

Beit known that-I, MATTHEW BROWN VVILD, asubject of the King-of Great Britain and Ireland, residing at 37 Arthur road, Erdington, in the city of Birmingham, Eng land, have invented certain new and useful Improvements Relating to Winches, of which the following is a specification.

This invention relates to winches for use on ship-board and. for other services, and particularly of the type employed for the loading and unloading of a v'essels cargo and having a plurality of drums or barrels driven from an electric or other motor constantly running in the one direction.

The invention comprises improved means as hereinafter described for transmitting the power from the motor to the respective winch barrels and for the control of the latter during the lifting and lowering operations.

Referring to the four accompanying sheets of explanatory drawings Figure 1 is a side elevation, Fig. 9. a plan, and Fig. 3 an end elevation (to a larger scale), illustrating a double barreled electric winch constructed in accordance with this invention.

Figs. 4L to 11 are views showing various details of the machine as follows Fig. 4 is an elevation, partly in section, of one of the barrels and its epicyclic gear train.

Fig. 5 is an end elevation and Fig. 6 a sectional side elevation of a brake rim with the automatic speed control device.

Fig. 7 is an end elevation ofa brake rim fitted with hand or manual brake.

Fig. 8 is an and elevation and Fig. 9 a side elevation of the composite brake band, while Fig. 10 is a plan representing ..(to a smaller scale) the said band extended in straight line form.

Fig. 11 is a side elevation showing a portion of a detachable brake rim.

The same reference letters in the different views indicate the same or similar parts.

In one convenient construction and arrangement of a multi-barreled electric winch in accordance with this invention, the armature shaft of the motor a is fitted with a worm adapted to drive a worm wheel secured to the center of a barrel shaft 1) extending throughout the bed-plate of the winch and having one, two, or more barrels as c thereon. From such shaft one or more springs o. I

to the said shaft 6 but fixed to a brake or retaining disk or wheel 7". The said sun wheels d and (2 respectively engage planetary pinions g and h integrally mounted on pins or axes fixed to the adjacent ends of the barrel 0 and a planet carrier 71. The whole of the gear train is inclosedby the brake rim j at the adjacent end of the barrel 0 and the rim of the planet carrier 2', the said rims :being bolted or otherwise connected to form an oil box or bath totally inclosing the gearing.

At the opposite end of the barrel there is provided, within the rim is at the said end, an automatic clutch to form the control connection between the barrel 0 and the drivin shaft (1 during the lowering movement of the barrel while the epicyclic gear train aforesaid is inactive. In the form shown at Figs. 5 and 6 the said clutch comprises a brake band as Z contacting with the periphery of a disk m keyed to the driving or barrel shaft 12 and brought into service by centrifugal force acting on the interconnected wei hted levers n carried within the rim is. egulation to the desired speed limit is effected by adjustment of the retaining For the lifting movement or rotation of the barrel the aforesaid retaining disk or wheel f and the sun wheel 6 fixed thereto are held against rotation by means of a brake-band Z embracing the rim of the disk and actuated by the hand lever 79. By the rotation of the driving shaft 1) the planet wheels 9 and h are then caused to travel around the sun wheels 0? and 6 thus rotating the barrel 0 and so lifting the load by the coiling 0f the rope upon the barrel. I

For lowering the retaining disk f and its sun wheel 0 are released, thus permitting the load in descending to reverse the rotation of the barrel 0 with the driving shaft 6 still running in its normal direction. The descent of the load is controlled by brake of lowering. Control of the lowering with- 1 in the speed limit is effected by a brake band em racing the rim 9' and actuated by the foot lever q. Such foot lever may actuate two brake' bands, one embracing the rim j as aforesaid and the other the rim k at the opposite end of the barrel.

The brakes for the barrel rims j and k and also for the retaining disk. f of the wheel 6, preferably comprise a steel band, lined with suitable fibrous or other friction creating material, which is made to form a circle to completelyembrace the periphery of the rim. The greater length or portion of .the band is made up of two steel strips as l and Z (Figs. 9 and 10) of such width as to give a lateral cooling space Z between them on the brake rim. To complete the ring or annulus for entirely embracing the rim the saidpair of strips are at one end connected preferably by a plate Z to a shorter strip Z adapted to pass through the lateral space aforesaid. One end of the band is connected to a hand or foot control lever and the opposite end to a fixed anchorage as Z (Fig. 8).

The brake rims j and 7c of the barrel 0 can be made separate from the ends or flanges of the same in the same manner that, as illustrated at Figs. 4 and 7, the rim of the sun wheel retaining disk f is made separate therefrom. Such separate rim is fixed in l'claim as new and desire to secure by Letters Patent is I 1. In winches, the combination consisting of a barrel, a brake rim at each end of said barrel, a shaft having the said barrel mounted loosely thereon, means for driving the said shaft, a manual brake for the rim at one end of the barrel, an automatic brake for the rim at the opposite end of the barrel, an

epicyclic gear train between the shaft'and the barrel, a brake disk controlling the said gear train, and an oil box totally inclosing the gear train, as set forth.

2. .In winches, the combination consisting of a barrel, a brake rim on said barrel, a

multiple strip brake band forming a com: plete circle embracing the said brake rim, a cooling space between the said brake band strips, a shaft having the said barrel mounted loosely thereon, means for driving said shaft, an epicyclic gear train between the shaft and the barrel, a brake disk controlling said gear train, and an oil box totally inclosing the. gear train, as set forth.

3. In winches, the combination consisting of a barrel, a brake rim in separable connection with said barrel, an air space between the said rim and thebarrel, fan vanes .in the said air space, a shaft having the barrel mounted loosely thereon, means for driving said shaft, an epicyclic gear train between the shaft and the barrel, a brake disk controlling said gear train, and an oil box totally inclosing the gear train, as set forth.

In testimony whereof I have signed my name to this specification.

MATTHEW BROWN WILD. 

